Boiling, pool crisis

ZUBER, N., Tribus, M. and Westwater, J. W. (1961) Second International Heat Transfer Conference, Paper 27, p. 230, Am. Soc. Mech. Eng. The hydrodynamic crisis in pool boiling of saturated and sub-cooled liquids. 

Effects of experimental parameters on pool boiling crisis with ordinary liquids In the... 

Effects of experimental parameters of pool boiling crisis with liquid metals... 

It should be noted that without experimental data on the subcooled pool boiling crisis in liquid metals, the above equation cannot be verified. Another mechanism for estimating the subcooling contribution to the CHF was used for boiling with ordinary liquids (i.e., a conduction mechanism). The two mechanisms may operate simultaneously, along with the hydrodynamics and conduction-convection mechanisms (Dwyer, 1976). 

Figure 5.3 Visual observation of boiling crisis in water pool. (From Gaetner, 1963. Copyright 1963 by General Electric Co., San Jose, CA. Reprinted with permission.)...

Zuber, N., M. Tribus, and J. W. Westwater, 1961, The Hydrodynamics Crisis in Pool Boiling of Saturated and Subcooled Liquids, in International Developments in Heat Transfer, Part II, pp. 230-236, ASME, New York. (2)... 

Y. Katto, S. Yokoya, and M. Yasunaka, Mechanism of Boiling Crisis and Transition Boiling in Pool Boiling, in Proc. 4th Int. Heat Transfer Conf, Paris-Versailles, France, vol. V, p. B3.2,1970. 

Y. Katto and S. Yokoya, Principal Mechanism of Boiling Crisis in Pool Boiling, Int. J. Heat Mass Transfer (11) 993-1002,1968. 

CHF is also referred as boiling crisis and burnout. DNB is generally used to describe the CHF condition in pool boiling and also in flow boiling where rapid bubble formation causes vapor blanket on the heater surface. Thus, CFIF at low quality is referred as DNB such as in PWR core. Dryout is used to describe liquid film dryout in annular flow. At high flow quality, dryout is expected with increase in heat flux such as in BWR core. 

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